Improvement in apparatus for heating cars



W. THAMM. Apparatus for Heating Cars. N0,147,06 Patented Feb.1Z,l874.

WILHELM THAMM, or VIENNA, AUsrIuA.

MPRGVEWIENT IN PPARATUS FR HEATING CARS.

Specification forming part ofLeiters Patent No. KQg dated February i7, 1874; application filed April 24, `1873.

. such a manner that air is heated and carried into the car for heating the same, as will be fully hereinafter described.

In the drawings, Figure l represents a side elevation of a car provided with my heating attachment; Fig. 2, a transverse section of the same Fig'. 3, a detached view 'of the front of the heating apparatus; Fig. 4, a longitudinal section thereof. Y

The car to be warmed is provided with a chamber, B, beneath the iioor A of the car. This chamber is composed, preferably, of

boards, Which can be covered on their interior surface With felt, pasteboa-rd, and plates. In the middle of the body of the car, Within the chamber B, is located a hollow Wroughtiron cylinder, a, carryin g a basket, o, which is preferably composed of iron bars and of a cylindrical shape, and into which is placed the fuel for Warming' the car. This basket is introduced into the cylinder a through an opening in the end of the same, which opening is closed by a door, b. The air required for the combustion of the fuel enters through openings d in the ash-pit e, and passes from there into the fuelchamber. The gases evolved pass off through a bent pipe, f, one end of which communicates with the fuel-chamber and the other end with the external atmosphere, and on this end an exhausting device is fixed, to create a draft through the combustion-chamber. 'The cylinder a is surrounded by an iron-plate jacket, g, on which the hot-air pipes 7L, passing into the ear, are fixed, the object of said jacket being to form a fire-proof casing. Above the apparatus may be arranged a jacket, t', composed of two iron plates, with a non-conducting material between them, by which means the Wooden parts are protected from any radiation of heat not prevented by the jacket g.

When the apparatus is to be put in opera tion, the fuel-basket c is removed from the cylinder a and iilled with fuel, and it is then inserted in the cylinder, the door b closed, and the tire lighted. the pipes h into the car, thus Warming the same. If the temperature in the car rises too high, the openings cl are closed by a slide, which will regulate the draft.

Ventilators p are arranged at the top of the car for the escape of the respired air in the apartment.

In order to constantly admit fresh air to be heated, I arrange beneath the car air pipes or catches m, which communicate With the fuelchamber and external atmosphere., by means of which the air entering' through the same is heated and carried bythe pipes It into the car, thus greatly increasing the heating capacity of the apparatus.

I claim as my invention- In combination with arailroad-car, the chamber B, located beneath the car-body, cylinder @,fuel-basket o, pipes f, air-openings d, and hotair pipes h', all arranged to operate substantiall y as and for the purpose described.

VVILIIELM THAMM.

Witnesses:

1. MILLWARD, T. DAvIDsoN.

The heated air ascends through 

